Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 98, NWS Philadelphia/Mount Holly

July 1, 2022Berks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 1, 2022, 3:38 PM EDT for Berks County, Pennsylvania. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 1, 2022, 3:38 PM EDT (19:38 UTC)
Expired: Jul 1, 2022, 3:56 PM EDT
In force: 18 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Berks County, PA

The radar

The Philadelphia radar (KDIX), 158 km from the middle of the area, began a volume at 19:39 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.6 hours before the alert went out and 212 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 447 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 1260 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

458 
WUUS51 KPHI 011938
SVRPHI
PAC011-012030-
/O.NEW.KPHI.SV.W.0098.220701T1938Z-220701T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
338 PM EDT Fri Jul 1 2022

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Berks County in eastern Pennsylvania...

* Until 430 PM EDT.

* At 338 PM EDT, a severe thunderstorm was located over Strausstown,
  or 8 miles south of Schuylkill Haven, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Hamburg and Strausstown. 

This includes Interstate 78 in Pennsylvania between mile markers 17
and 33.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4054 7617 4056 7613 4057 7608 4058 7606
      4057 7602 4063 7600 4067 7592 4062 7586
      4043 7620 4052 7627
TIME...MOT...LOC 1938Z 225DEG 22KT 4051 7619 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RCM

1 follow-up statement

741 
WWUS51 KPHI 011956
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
356 PM EDT Fri Jul 1 2022

PAC011-012006-
/O.CAN.KPHI.SV.W.0098.000000T0000Z-220701T2030Z/
Berks PA-
356 PM EDT Fri Jul 1 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BERKS COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However small hail, gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 4054 7617 4056 7613 4057 7608 4058 7606
      4057 7602 4063 7600 4067 7592 4062 7586
      4043 7620 4052 7627
TIME...MOT...LOC 1952Z 225DEG 22KT 4059 7609 

$$

RCM

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 1, 2:04 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	20 min
Jul 1, 2:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	25 min
Jul 1, 3:44 PM EDT	Severe Thunderstorm Warning	PHI	Chester	46 min
Jul 1, 4:56 PM EDT	Severe Thunderstorm Warning	PHI	Berks	32 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2022 Every severe thunderstorm warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.